US4587333AExpiredUtility

Cephalosporins and their production

43
Assignee: TAKEDA CHEMICAL INDUSTRIES LTDPriority: Sep 20, 1983Filed: Sep 14, 1984Granted: May 6, 1986
Est. expirySep 20, 2003(expired)· nominal 20-yr term from priority
Inventors:Hideo OnoYukimasa NozakiSetsuo Harada
Y10S435/822C12P 35/08C12P 35/06
43
PatentIndex Score
8
Cited by
3
References
8
Claims

Abstract

A compound of the formula: ##STR1## wherein R 1 stands for hydrogen or formylamino, R 2 stands for hydrogen, alanyl or alanyl-alanyl, or its salt, which can be produced by cultivating a microorganism belonging to the genus Lysobacter, is useful as a therapeutic agent against infectious disease caused by bacteria.

Claims

exact text as granted — not AI-modified
What we claim is: 
     
       1. A compound of the formula: ##STR6## wherein R 1  stands for hydrogen or formylamino, R 2  stands for hydrogen, alanyl or alanyl-alanyl, or its salt. 
     
     
       2. A compound as claimed in claim 1, wherein R 1  is hydrogen. 
     
     
       3. A compound as claimed in claim 1, wherein R 1  is formylamino. 
     
     
       4. A compound as claimed in claim 1, wherein R 1  is formylamino and R 2  is hydrogen or alanyl. 
     
     
       5. A compound as claimed in claim 1, wherein R 1  is formylamino and R 2  is alanyl-alanyl. 
     
     
       6. A compound as claimed in claim 1, wherein R 1  is hydrogen and R 2  is hydrogen. 
     
     
       7. A compound as claimed in claim 1, wherein R 1  is hydrogen and R 2  is alanyl. 
     
     
       8. A compound as claimed in claim 1, wherein R 1  is hydrogen and R 2  is alanyl-alanyl.

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